With the model of Boeing 737 MAX having been grounded since March because of killing 346 people in a span of five months in two crashes, the airplane enters its eighth month of being restricted to fly causing airlines to drive up costs as they cancel more flights for 2020.

Travelers are experiencing the nightmare of getting their flights bumped more frequently as the use of 370 MAX jets worldwide grounding continues longer than expected.

In a move to speed up getting the planes back to the sky, the company's board had removed CEO Dennis Muilenburg from his chairman role so he can concentrate on getting the 737 MAX flying again.

Though Boeing said they are expecting the Federal Aviation Administration (FAA) to clear their best-selling plane in the fourth quarter, FAA made it clear there is no time frame for the grounding's lifting.

Airlines have no choice but to cancel flights.

Airlines canceling or bumping up flights are greatly affecting not only their profits but their growth plans as well because there are still hundreds more of Boeing's fuel-efficient best-seller planes scheduled to get delivered this year.

Effect on the airline industry is so bad that when the MAX flies again, it's still not good news for US carriers because its stock is already under-performing in the broader market.

American Airlines canceled 9,475 flights during the third quarter hitting the company's pre-tax income by about $140 million.

American Airlines foresees canceling 140 flights per day until the airplane flies again translating to 14,000 more canceled flights for the company in the fourth quarter including early January.

The airline has 24 737 MAX jets in its current fleet and has 76 more in pending order.

Airline companies are canceling flights way ahead of time to avoid the mandatory complementary and premium-priced last-minute, alternative flights.

Credit Suisse airline analyst Jose Caiado commented that he thinks the airlines "want to avoid doing that around Christmas and New Year's."

In bumping up passengers' flights, airlines are using a similar or a larger aircraft to limit disruptions in their operations.

The moment regulators declare the 737 MAX, okay to fly again, it will still take one month to train pilots and carry out maintenance work before the planes can get used.

Though the discovery of an anti-stall system misfiring is the culprit found by investigators as the one responsible for the crashes of Lion Air flight in October 2018 and an Ethiopian Airlines 737 MAX in March, this report hadn't yet been turned in for regulators' review.

Still, Boeing had already set on software fixes to correct this stalling.